/*
 * Copyright (c) 2016-2021 Michael Zhang <yidongnan@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package net.devh.boot.grpc.common.autoconfigure;

import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.sleuth.autoconfig.brave.BraveAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import brave.Tracing;
import brave.grpc.GrpcTracing;

/**
 * The configuration containing the common grpc tracing setup.
 *
 * <p>
 * Can be disabled using {@code spring.sleuth.grpc.enabled=false}.
 * </p>
 *
 * <p>
 * Should run after {@link BraveAutoConfiguration} if present to ensure the required beans exist.
 * </p>
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnProperty(value = "spring.sleuth.grpc.enabled", matchIfMissing = true)
@AutoConfigureAfter(name = "org.springframework.cloud.sleuth.autoconfig.brave.BraveAutoConfiguration")
@ConditionalOnClass(value = {Tracing.class, GrpcTracing.class})
public class GrpcCommonTraceAutoConfiguration {

    @Bean
    @ConditionalOnMissingBean
    public GrpcTracing grpcTracing(final Tracing tracing) {
        return GrpcTracing.create(tracing);
    }

}
